//
//  UserAccount.swift
//  Weibo
//
//  Created by 杨雨哲 on 15/6/28.
//  Copyright © 2015年 yyz. All rights reserved.
//

import UIKit

class UserAccount: NSObject,NSCoding {
    
    /// 用于调用access_token，接口获取授权后的access token
    var access_token: String
    /// access_token的生命周期，单位是秒数(实际是数值！)
    var expires_in: NSTimeInterval
    
    /// 过期日期
    /// 程序创建人有5年有效期，普通用户有效期三天
    var expiresDate: NSDate
    
    /// 当前授权用户的UID
    var uid: String
    
    /// 名称
    var name: String?
    
    /// 用户头像地址
    var avatar_large: String?

    init(dict:[String:AnyObject]) {
        
        access_token = dict["access_token"] as! String
        expires_in = dict["expires_in"] as! NSTimeInterval
        uid = dict["uid"] as! String
        
        expiresDate = NSDate(timeIntervalSinceNow: expires_in)
    }
    
    func loadUserInfo(finished: (account: UserAccount?,error: NSError?) -> ()){
        
        let params = ["access_token": access_token, "uid": uid]

        NetworkTool.sharedNetworkTool().GET("2/users/show.json", parameters: params, success: { (_, JSON) -> Void in
            
            let dict = JSON as! [String : AnyObject]
            self.name = dict["name"] as? String
            self.avatar_large = dict["avatar_large"] as? String
            self.saveAccount()
            
            finished(account: self, error: nil)
            
            }) { (_, error) -> Void in
                finished(account: nil, error: error)
        }
    }
    
    override var description:String{
        
        let properties = ["access_token", "expires_in", "uid", "expiresDate"]
        
        return "\(self.dictionaryWithValuesForKeys(properties))"
    }
    
    static let accountPath = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true).last!.stringByAppendingPathComponent("account.plist")
    
    func saveAccount(){
        NSKeyedArchiver.archiveRootObject(self, toFile: UserAccount.accountPath)
    }
    
    class func loadAccount() ->UserAccount?{
        
        if let account = NSKeyedUnarchiver.unarchiveObjectWithFile(accountPath) as? UserAccount{
            if account.expiresDate.compare(NSDate()) == NSComparisonResult.OrderedDescending{
                return account
            }
        }
        
        return nil
        
    }
    
    required init?(coder aDecoder: NSCoder) {
        access_token = aDecoder.decodeObjectForKey("access_token") as! String
        expires_in = aDecoder.decodeDoubleForKey("expires_in")
        expiresDate = aDecoder.decodeObjectForKey("expiresDate") as! NSDate
        uid = aDecoder.decodeObjectForKey("uid") as! String
        name = aDecoder.decodeObjectForKey("name") as? String
        avatar_large = aDecoder.decodeObjectForKey("avatar_large") as? String

    }
    
    func encodeWithCoder(aCoder: NSCoder) {
        aCoder.encodeObject(access_token, forKey: "access_token")
        aCoder.encodeDouble(expires_in, forKey: "expires_in")
        aCoder.encodeObject(expiresDate, forKey: "expiresDate")
        aCoder.encodeObject(uid, forKey: "uid")
        aCoder.encodeObject(name, forKey: "name")
        aCoder.encodeObject(avatar_large, forKey: "avatar_large")
    }
}
